I’d say they are. Who cares if I write “Nodejs” or “Node.js”? The reader knows exactly what I meant, and that’s what matters. Anything else is just needless pedantry.
It's not about communication, here. You want to be absolutely perfect in your CV, to prove that you've spent time and effort making it perfect. It serves no other purpose but to show your determination. If communication was the point, a long rant in which you write "yeah I worked with node.js, it was cool lol" would be OK as well, after all it gets the point across doesn't it?
The things is -- they ding you for a whole range of other things, all the time. Like not working for the right kind of company in your last job, failing their bullshit tests, or heaven forbid, having a "gap" in your resume. As if having a life (or a family member that needs taking care of) is to be seen as thumbing your nose at their sacred cause.
At least fixing stupid mistakes in your resume is well within your control, and (unlike cramming for their tests) doesn't take hours and hours of your time.
That's fine. I see it like this: If there is a stupid mistake, it shows that I am a fallible human after all. (I tend to think that I don't have stupid mistakes in my CV)
But my CV also shows part of my character, mainly the fun part. If that is deemed unprofessional by a company, I immediately know they are no good fit for me.
The thing is: As with every relationship, they are two way streets. I am not a beggar as a potential employee, neither am I king. We see eye to eye or not at all.
I'm an OCD-ish perfectionist (especially in writing) if the world has ever seen one, to the point where I didn't stark working on my bachelor's or my master's thesis before I had exactly the markdown + latex setup + custom typography that I wanted. So I would definitely internally cringe if I'd see typos like this.
But to reject a candidate just because they're not the same kind of pedant that I am would be quite unreasonable IMHO. As long as the whole thing isn't littered with typos or formatting issues, that's just something I wouldn't pay too much attention to. Not everyone needs to be the person to dot every i and cross every t.
Also, I really want to see the HR department that can confidently reject or even mark down a candidate when most of the writing I've seen from most people in any company I've ever been (including from HR departments, PMs or executives) has been "meh" at best, and full of errors or at least awkward language more often than not. For better or worse, writing skills are not necessarily something we tend to select for in the industry.
It really does require an eye for detail (in places where it matters) to a degree that comes epsilon close to being "pedantic" in the annoying sense -- without quite going over that line.
